CN219809539U - Pin fixing device for inlet end of temperature reduction mixing pipe - Google Patents

Abstract

The utility model discloses a pin fixing device for an inlet end of a temperature reduction mixing pipe, and relates to the technical field of fixing devices. The device comprises a barrel, an inner sleeve arranged in the barrel and a temperature reducing water pipe penetrating through the barrel and the inner sleeve, wherein a mounting hole is penetrated at the superposition position of the barrel and the inner sleeve, an internal thread is arranged in the mounting hole, and the mounting hole is arranged at two sides or one side of the temperature reducing water pipe; the pin penetrates through the mounting hole to fix the inner sleeve of the cylinder body, the pin comprises a tightening part and a threaded connecting part, and the outer diameter of the tightening part is smaller than the inner diameter of the mounting hole. The utility model provides a pin fixing device for pin-fixing the inlet end of a temperature-reducing mixing pipe.

Description

Pin fixing device for inlet end of temperature reduction mixing pipe

Technical Field

The utility model relates to the technical field of fixing devices, in particular to a pin fixing device for an inlet end of a temperature-reducing mixing pipe.

Background

The mixing pipe is usually internally provided with high-temperature and high-pressure steam, the mixing pipe is usually composed of a cylinder body and an inner sleeve pipe, a temperature reducing water pipe penetrates through the mixing pipe, the temperature reducing water pipe is used for introducing temperature reducing water, and the temperature reducing water is used for reducing the temperature of the high-temperature and high-pressure steam in the mixing pipe.

When the mixing pipe works, the mixing pipe is easy to vibrate due to the change of steam-water temperature and the fluctuation of pressure, and after long-term operation, the fixing device at the inlet end of the mixing pipe is easy to fall off, such as the inner sleeve falls off, and then the mixing pipe can slide into the next section of barrel pipeline to cause mechanical failure.

The temperature reducing mixing pipe is a position where the temperature reducing water pipe is connected with the mixing pipe, and is commonly called as a temperature reducing mixing pipe, and the temperature reducing water pipe at the position is opened to be communicated with the inside of the mixing pipe, so that a fixing device is conveniently added at the position.

Therefore, in order to solve the above technical problem, a new technical solution is required to solve the problem. In particular to a pin fixing device for the inlet end of a temperature reducing mixing pipe.

Disclosure of Invention

The utility model provides a pin fixing device at the inlet end of a temperature-reducing mixing pipe, which aims to solve the technical problem that the existing high-temperature high-pressure steam mixing pipe is easy to fall off.

The technical scheme is as follows for realizing the purpose: the pin fixing device comprises a barrel, an inner sleeve arranged in the barrel and a temperature reducing water pipe penetrating through the barrel and the inner sleeve, wherein mounting holes are formed in the overlapping position of the barrel and the inner sleeve in a penetrating manner, and the mounting holes are arranged on two sides or one side of the temperature reducing water pipe; the pin penetrates through the mounting hole to fix the cylinder body and the inner sleeve, the pin comprises a tightening part and a threaded connecting part, and the outer diameter of the tightening part is smaller than the inner diameter of the mounting hole.

Preferably, four mounting holes are arranged and are respectively distributed along the circumferences of the cross sections of the cylinder body and the inner sleeve in an annular manner; the mounting hole is arranged on one side of the temperature reducing water pipe.

Preferably, the mounting hole is spaced 5-10cm from the heat-reducing water pipe.

Preferably, the pin comprises a nut, a connecting portion and a tightening portion which are sequentially arranged, wherein the connecting portion is cylindrical and provided with external threads, and the tightening portion is polygonal prismatic.

Preferably, the cross section of the tightening part is triangular, quadrangular or hexagonal.

Preferably, the temperature reducing water pipe comprises a first temperature reducing pipe section and a second temperature reducing pipe section, the first temperature reducing pipe section Wen Guandi is arranged outside the cylinder body, and the second temperature reducing pipe section Wen Guandi is fixedly arranged in the first temperature reducing pipe section Wen Guandi and penetrates through the cylinder body and the inner sleeve.

Preferably, a ring-shaped notch is arranged outside a section of the reducer Wen Guandi.

Advantageous effects

Four mounting holes are formed in the barrel and the inner sleeve in a penetrating mode, the mounting holes of the inner sleeve and the barrel are formed in the pin in a penetrating mode, and the barrel and the inner sleeve are fixed. The pin includes tightening part and connecting portion, and tightening part is polygonal prismatic, and connecting portion is equipped with the external screw thread, and the pin can outwards pass from the inside of inner skleeve to make the external screw thread of connecting portion and the internal screw thread connection of mounting hole when the outside is screwed up tightening part.

The design of the pin enables the pin to pass through from the inside to the outside, and finally welding is realized at the outside.

Drawings

FIG. 1 is a schematic cross-sectional view of the entire structure of the present utility model.

FIG. 2 is a schematic cross-sectional view of the inner barrel and sleeve of the present utility model.

Fig. 3 is a schematic view of the structure of the pin of the present utility model.

Wherein:

1-a temperature reducing water pipe; 11-subtracting Wen Guandi by one section; 111-incision; 12-Wen Guandi two sections; 13-perforating; 2-a cylinder; 3-an inner sleeve; 4-mounting holes; 5-pins; 51-a tightening part; 52-connecting part; 53-external threads; 54-nut.

Description of the embodiments

The present utility model will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. The specific embodiments described herein are illustrative only and are not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

In the description of the present utility model, it will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present utility model, it should be noted that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships in which the inventive product is conventionally placed in use, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 3, a pin fixing device for an inlet end of a temperature reducing mixing pipe comprises a cylinder 2, an inner sleeve 3 arranged in the cylinder 2, and a temperature reducing water pipe 1 penetrating through the cylinder 2 and the inner sleeve 3. The inner sleeve and the cylinder are cylindrical, the inner sleeve is sleeved inside the cylinder, and high-temperature and high-pressure steam flows in the inner sleeve during working. The inner sleeve and the cylinder are provided with perforations 13, and the heat-reducing water pipe is arranged on the cylinder and the inner sleeve through the perforations 13. The temperature reducing water pipe 1 comprises a temperature reducing pipe first section 11 and a temperature reducing pipe second section 12, a first section 11 of a temperature reducing pipe Wen Guandi is arranged outside the cylinder 2, and a second section 12 of a temperature reducing pipe Wen Guandi is fixedly arranged in the first section 11 of the temperature reducing pipe Wen Guandi and penetrates through the cylinder 2 and the inner sleeve 3. The segment 11 of the reducer Wen Guandi is provided with an annular notch 111. The temperature reducing water is circulated in the temperature reducing water pipe, and the high-temperature high-pressure steam in the mixing pipe is subjected to temperature reduction through the temperature reducing water when needed.

The overlapping position of the cylinder body 2 and the inner sleeve 3 is penetrated and provided with a mounting hole 4, the mounting hole 4 is internally provided with internal threads, and the mounting hole 4 is arranged at two sides or one side of the temperature reducing water pipe 1. In this embodiment, the mounting hole is preferably disposed on one side of the temperature-reducing water pipe 1, and the mounting hole 4 is spaced 5-10cm from the temperature-reducing water pipe 1. The mounting hole sets up in the one side of subtracting the warm water pipe can realize the relative fixation to inner skleeve and barrel, need not set up too much mounting hole and pin. The distance between the mounting hole and the temperature reducing water pipe is not too large, and when the distance between the mounting hole and the temperature reducing water pipe is too long, the pin is inconvenient to install into the mounting hole through the perforation at the temperature reducing water pipe.

As shown in fig. 1 and 3, the device further comprises a pin 5, the pin 5 passes through the mounting hole 4 to fix the cylinder 2 and the inner sleeve 3, the pin 5 comprises a tightening part 51 and a connecting part 52 provided with an external thread 53, and the outer diameter of the tightening part 51 is smaller than the inner diameter of the mounting hole 4. The inner sleeve is fixedly connected with the cylinder body through a pin, a tightening part which is convenient for screwing the pin is arranged at one end of a screw of the pin, a connecting part is arranged below the tightening part, and external threads are arranged outside the connecting part. When the screw of pin penetrates in the mounting hole, screw portion external diameter is because being less than the internal diameter of mounting hole to make screw portion can light pass the mounting hole and expose, screw portion through screwing up exposing, rotate the pin, make the external screw thread of pin and the internal screw thread of mounting hole to being connected, thereby make the pin run through barrel and inner skleeve. As shown in fig. 3, the pin 5 includes a nut 54, a connecting portion 52, and a tightening portion 51 sequentially disposed, the connecting portion 52 is cylindrical and provided with an external thread 53, and the tightening portion 51 is polygonal prism-shaped. The tightening part 51 has a triangular, quadrangular or hexagonal cross section. The cross section of the tightening part is polygonal, so that the tightening part is convenient to screw. The outer diameter of the tightening part is smaller than the outer diameter of the connecting part and the inner diameter of the mounting hole.

The number of the mounting holes can be four or other numbers. In this embodiment, four mounting holes 4 are provided to increase the fixing effect, and are respectively distributed annularly along the circumferences of the cross sections of the cylinder 2 and the inner sleeve 3. The mounting hole 4 is provided at one side of the desuperheating water pipe 1.

The utility model provides a device for fixing a mixing pipe, wherein a temperature reducing pipe penetrates through the mixing pipe, and can be communicated with a cylinder body and an inner sleeve through a perforation at the installation position of the temperature reducing pipe after the temperature reducing pipe is cut. When the cooling tube is installed, a section of Wen Guandi is firstly cut around the annular incision, the first section of the cooling tube and the second section of the cooling tube are disassembled, so that the perforation is exposed, the pin is internally and penetratingly installed in the inner sleeve and the cylinder body through the perforation, the inner sleeve and the cylinder body are fixed, and the pin is welded on the installation hole through welding.

The above embodiments are only for illustrating the present utility model, not for limiting the present utility model, and various changes and modifications may be made by one of ordinary skill in the relevant art without departing from the spirit and scope of the present utility model, and therefore, all equivalent technical solutions are also within the scope of the present utility model, and the scope of the present utility model is defined by the claims.

Claims (7)

1. The utility model provides a pin fixing device of mixed pipe entry end of subtracting temperature, includes barrel (2), sets up inner skleeve (3) in barrel (2) and run through barrel (2) and inner skleeve (3) subtracting temperature pipe (1), its characterized in that: the overlapping position of the cylinder body (2) and the inner sleeve (3) is penetrated with a mounting hole (4), an internal thread is arranged in the mounting hole (4), and the mounting hole (4) is arranged at two sides or one side of the temperature reducing water pipe (1); still include pin (5), pin (5) pass mounting hole (4) will barrel (2) and inner skleeve (3) are fixed, pin (5) are including screwing up portion (51) and screw thread form connecting portion (52), the external diameter of screwing up portion (51) is less than the internal diameter of mounting hole (4).

2. A pin fixture for the inlet end of a reduced temperature mixing tube as defined in claim 1, wherein: four mounting holes (4) are formed and are respectively distributed along the circumferences of the cross sections of the cylinder body (2) and the inner sleeve (3) in an annular mode; the mounting hole (4) is arranged on one side of the temperature reducing water pipe (1).

3. A pin fixture for the inlet end of a reduced temperature mixing tube as defined in claim 2, wherein: the mounting hole (4) is separated from the temperature reduction water pipe (1) by 5 cm to 10cm.

4. A pin fixture for the inlet end of a reduced temperature mixing tube as defined in claim 2, wherein: the pin (5) comprises a nut (54), a connecting portion (52) and a tightening portion (51) which are sequentially arranged, the connecting portion (52) is cylindrical and provided with an external thread (53), and the tightening portion (51) is polygonal prismatic.

5. A pin fixture for the inlet end of a reduced temperature mixing tube as defined in claim 4, wherein: the cross section of the tightening part (51) is triangular, quadrangular or hexagonal.

6. A pin fixture for the inlet end of a reduced temperature mixing tube as defined in claim 1, wherein: the cooling water pipe (1) comprises a cooling pipe first section (11) and a cooling pipe second section (12), wherein the cooling pipe first section (11) is arranged outside the cylinder body (2), and the cooling pipe Wen Guandi second section (12) is fixedly arranged in the cooling pipe Wen Guandi first section (11) and penetrates through the cylinder body (2) and the inner sleeve (3).

7. A pin fixture for the inlet end of a reduced temperature mixing tube as defined in claim 6, wherein: an annular notch (111) is arranged outside one section (11) of the reducer Wen Guandi.